InjectEave: an attack that intercepts analog audio signals
BLUF
Analog headphone audio may leak through electromagnetic emissions and can be remotely intercepted under the right conditions.
NEWS
Researchers in Hong Kong developed InjectEave, an attack that captures audio by picking up electromagnetic signals emitted by analog headphones. The technique demonstrates a side-channel risk where wired audio equipment can expose spoken content without needing direct access to the device or network.
Why I Care
This matters because it bypasses many conventional security controls and could affect confidential conversations in offices, government facilities, studios, hospitals, and other environments where analog headphones or speakers are used. The risk is highest for sensitive discussions conducted near unshielded audio hardware.
Next Steps
Security teams should inventory analog headphones, speakers, and audio cables in high-risk areas immediately. Within 30 days, replace or shield vulnerable equipment where possible and restrict analog audio use in sensitive rooms. Within 90 days, update physical security policies to address electromagnetic leakage from peripherals.
Source: Kaspersky Security Blog ·